diff --git a/parallel_test.sh b/parallel_test.sh
index de9c7b7..ef6f5a1 100755
--- a/parallel_test.sh
+++ b/parallel_test.sh
@@ -12,7 +12,11 @@ test_logs=()
 # cleanup
 rm -f logs/*
 echo "Cleaning up"
-./node_modules/.bin/mocha test/000-cleanup.js > "logs/000-cleanup.log" 2>&1
+if ! ./node_modules/.bin/mocha test/000-cleanup.js > "logs/000-cleanup.log" 2>&1; then
+    echo "Cleanup script failed"
+    cat "logs/000-cleanup.log"
+    exit 1
+fi
 
 # run tests
 for t in "${tests[@]}"; do